Starbrite Liquid Rubbing Compound for Medium Oxidation Starbrite liquid formula rubbing compound designed for light to medium duty applications. Use this compound to restore original shine and color by removing chalk and oxidation on fiberglass and painted surfaces. Features Removes stains, medium oxidation, and light scratches. Use on fiberglass, metal, and painted surfaces. Great for hand or buffer application. Convenient liquid formula. Will not set up like old fashioned rubbing compounds whi